On Mon, May 07, 2018 at 10:21:04PM +0900, Tetsuo Handa wrote: > > I don't understand your concern; where are we going to out_putf when > > error == 0? Ah, now I see it, thanks. I'll send a revised patch. > By the way, are you aware that current "/* Avoid recursion */" loop is not thread safe? Actually, it is safe. While the child loop device has an open file on the parent, lo_refcnt is elevated, which prevents loop_clr_fd from actually set setting lo_state to Lo_rundown and clearing lo_backing_file - Ted
